Aroma diffuser



FIG. 1 is a perspective view of an aroma diffuser showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing portions of the aroma diffuser are included for the purpose of illustrating the portions of the article and forms no part the claimed design. 

CLAIM The ornamental design for an aroma diffuser, as shown and described. 